Ferromagnetic nickel(II) polynuclear complexes with end-on azido as bridging ligand. The first nickel(II)-azido one-dimensional ferromagnetic systems

1994 ◽  
Vol 33 (3) ◽  
pp. 484-489 ◽  
Author(s):  
Joan Ribas ◽  
Montserrat Monfort ◽  
Carmen Diaz ◽  
Carles Bastos ◽  
Xavier Solans
Keyword(s):  
Polynuclear Complexes ◽  
One Dimensional ◽  
Bridging Ligand

Synthesis of Polynuclear Complexes with an Amino Acid or a Peptide as a Bridging Ligand

2008 ◽  
Vol 2 (2) ◽  
pp. 122-139
Author(s):  
Takashi Komiyama ◽  
Satoshi Igarashi ◽  
Yasuhiko Yukawa
Keyword(s):  
Amino Acid ◽  
Polynuclear Complexes ◽  
Bridging Ligand

One new nonlinear optical and ferroelectric one-dimensional chain constructed by an unsymmetric bridging ligand

2009 ◽  
Vol 12 (11) ◽  
pp. 1164-1167 ◽  
Author(s):  
Yong-Tao Wang ◽  
Gui-Mei Tang ◽  
Yong-Qin Wei ◽  
Ting-Xiao Qin ◽  
Tian-Duo Li ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Dimensional Chain ◽  
One Dimensional ◽  
Bridging Ligand

scholarly journals catena-Poly[[[4-amino-3,5-bis(pyridin-2-yl)-4H-1,2,4-triazole-κ2N1,N5](dicyanamido-κN)copper(II)]-μ2-dicyanamido-κ2N:N′]: coordination polymer chains linked into a bilayer by hydrogen bonds and π–π stacking interactions

2014 ◽  
Vol 70 (4) ◽  
pp. 359-363 ◽  
Author(s):  
Zouaoui Setifi ◽  
Fatima Setifi ◽  
Mohamed Saadi ◽  
Djamil-Azzeddine Rouag ◽  
Christopher Glidewell
Keyword(s):  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Polymer Chains ◽  
Stacking Interactions ◽  
Terminal Ligand ◽  
One Dimensional ◽  
Bridging Ligand ◽  
Pyramidal Geometry ◽  
Π Stacking ◽  
Square Pyramidal Geometry

In the title compound, [Cu(C2N3)2(C12H10N6)]nor [Cu(dca)2(abpt)]n, where abpt is 4-amino-3,5-bis(pyridin-2-yl)-4H-1,2,4-triazole and dca is the dicyanamide anion, the CuIIcentre is five-coordinate with an approximately square-pyramidal geometry. One of the two dicyanamide ligands is a terminal ligand, but the other one acts as a μ1,5-bridging ligand between pairs of CuIIcentres, so generating a one-dimensional coordination polymer. A combination of N—H...N and C—H...N hydrogen bonds, augmented by π–π stacking interactions, links the coordination polymer chains into a bilayer structure. Comparisons are made with some related CuIIcomplexes containing dca ligands and heteroaromatic co-ligands.

scholarly journals catena-Poly[[(dichloridozinc)-μ-4,4′-bis(1H-imidazol-1-yl)biphenyl-κ2N3:N3′] 0.25-hydrate]

2012 ◽  
Vol 68 (4) ◽  
pp. m406-m406
Author(s):  
Yong-Xia Ning ◽  
Wen Fan ◽  
Gang Xie
Keyword(s):  
Coordination Polymer ◽  
Water Molecule ◽  
Chloride Ions ◽  
Dihedral Angles ◽  
One Dimensional ◽  
Bridging Ligand ◽  
Polymeric Chains ◽  
Benzene Rings ◽  
Title One ◽  
Biphenyl Ligands

In the title one-dimensional coordination polymer, {[ZnCl2(C18H14N4)]·0.25H2O}n, the ZnIIatom is coordinated by two chloride ions and two 4,4′-bis(1H-imidazol-1-yl)biphenyl ligands, generating a distorted tetrahedral ZnCl2N2geometry. The dihedral angle between the benzene rings of the ligand is 51.0 (1)° and the dihedral angles between the benzene rings and their attached imidazole rings are 18.7 (2) and 45.9 (1)°. The bridging ligand leads to [10-1] polymeric chains in the crystal and the disordered water molecule (occupancy 0.25) forms O—H...Cl hydrogen bonds.

Synthesis and Properties of a New Kind of One-Dimensional Conductors. 1. General Aspects

1979 ◽  
Vol 34 (8) ◽  
pp. 983-985 ◽  
Author(s):  
Michael Hanack ◽  
Friedrich Franz Seelig ◽  
Joachim Strähle
Keyword(s):  
Experimental Studies ◽  
Bidentate Ligand ◽  
Central Metal Atom ◽  
Central Metal ◽  
Bridging Ligands ◽  
One Dimensional ◽  
Bridging Ligand ◽  
Linear Chains ◽  
Square Planar ◽  
General Aspects

AbstractA model for a new kind of one-dimensional conductors is presented. The compounds consist of square-planar metal complexes MX4 which are polymerised via bridging ligands L to linear chains. The bidentate ligand L, e.g. C22-, leads to the formation of a linear π-system along the chain, which is essential for the conductivity. The square-planar complex can be, for example, a metal phthalocyanine. MO-calculations show that this kind of polymer gives rise to a suitable energy band structure. An advantage of the new one-dimensional conductors is their flexibility; different combinations of the square-planar ligand system, the bridging ligand, and the central metal atom can be used. First experimental studies show that the preparation of the proposed conductors is possible.

Two nickel(II) bis[(pyridin-2-yl)methyl]amine complexes with homophthalic and benzene-1,2,4,5-tetracarboxylic acids

2014 ◽  
Vol 70 (6) ◽  
pp. 541-546 ◽  
Author(s):  
Ana María Atria ◽  
Maria Teresa Garland ◽  
Ricardo Baggio
Keyword(s):  
Water Molecules ◽  
Charge Balance ◽  
Compound I ◽  
Carboxylate Ligands ◽  
Crystal Water ◽  
One Dimensional ◽  
Bridging Ligand ◽  
Methyl Amine ◽  
Compound Ii ◽  
Bonding Scheme

Two new NiIIcomplexes involving the ancillary ligand bis[(pyridin-2-yl)methyl]amine (bpma) and two different carboxylate ligands,i.e.homophthalate [hph; systematic name: 2-(2-carboxylatophenyl)acetate] and benzene-1,2,4,5-tetracarboxylate (btc), namelycatena-poly[[aqua{bis[(pyridin-2-yl)methyl]amine-κ3N,N′,N′′}nickel(II)]-μ-2-(2-carboxylatophenyl)aceteto-κ2O:O′], [Ni(C9H6O4)(C12H13N3)(H2O)]n, and (μ-benzene-1,2,4,5-tetracarboxylato-κ4O1,O2:O4,O5)bis(aqua{bis[(pyridin-2-yl)methyl]amine-κ3N,N′,N′′}nickel(II)) bis(triaqua{bis[(pyridin-2-yl)methyl]amine-κ3N,N′,N′′}nickel(II)) benzene-1,2,4,5-tetracarboxylate hexahydrate, [Ni2(C10H2O8)(C12H13N3)2(H2O)2]·[Ni(C12H13N3)(H2O)3]2(C10H2O8)·6H2O, (II), are presented. Compound (I) is a one-dimensional polymer with hph acting as a bridging ligand and with the chains linked by weak C—H...O interactions. The structure of compound (II) is much more complex, with two independent NiIIcentres having different environments, one of them as part of centrosymmetric [Ni(bpma)(H2O)]2(btc) dinuclear complexes and the other in mononuclear [Ni(bpma)(H2O)3]2+cations which (in a 2:1 ratio) provide charge balance for btc4−anions. A profuse hydrogen-bonding scheme, where both coordinated and crystal water molecules play a crucial role, provides the supramolecular linkage of the different groups.

scholarly journals Crystal structure ofcatena-poly[[trimethyltin(IV)]-μ-2-(2-nitrophenyl)acetato-κ2O:O′]

2015 ◽  
Vol 71 (3) ◽  
pp. m52-m53 ◽  
Author(s):  
Muhammad Danish ◽  
Muhammad Nawaz Tahir ◽  
Sana Iftikhar ◽  
Muhammad Asam Raza ◽  
Muhammad Ashfaq
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Dihedral Angles ◽  
Screw Axis ◽  
One Dimensional ◽  
Bridging Ligand ◽  
Metal Atoms ◽  
Benzene Rings ◽  
Trigonal Pyramid ◽  
Title One

In the title one-dimensional coordination polymer, [Sn(CH3)3(C8H6NO4)]n, the SnIVatom is coordinated by three methyl C atoms and two carboxylate O atoms (one symmetry generated), resulting in an almost regular SnC3O2trigonal pyramid. The C atoms occupy the equatorial sites and the O atoms occupy the axial sites. In the ligand, the dihedral angles between the benzene ring and the pendant acetate and nitro groups are 57.7 (1) and 36.9 (3)°, respectively. The bridging ligand leads to [010] chains in the crystal, with adjacent metal atoms related by a 21screw axis. A weak π–π interaction exists between the centroids of symmetry-related benzene rings at a distance of 3.9131 (19) Å.

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